Home / 2,205.63-3,043.75-1,210.90

Finding the Fourth Proportional to 2,205.63, 3,043.75 and 1,210.90

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Solution

The fourth proportional to 2,205.63, 3,043.75 and 1,210.90 is: 1,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.63 : 3,043.75 = 1,210.90 : x
  2. Step 2: Convert to fraction form
    2,205.63/3,043.75 = 1,210.90/x
  3. Step 3: Cross multiply
    2,205.63x = 3,043.75 × 1,210.90
  4. Step 4: Simplify right side
    2,205.63x = 3,685,676.88
  5. Step 5: Solve for x
    x = 3,685,676.88/2,205.63
  6. Step 6: Final answer
    x = 1,671.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.